LWRC SIX8-A5 6.8mm SPC 16.1″ 30rd Tungsten
Pros & cons
What works
- Weighs 7.2 lb unloaded — 1.3 lb lighter than a comparable Daniel Defense DDM4V7
- 16.1-inch spiral-fluted barrel dissipates heat 30% faster than non-fluted designs
- Ambidextrous controls allow manipulation from either side in under 2 seconds
- Tungsten Grey finish provides 50% better corrosion resistance than standard anodizing
Trade-offs
- 6.8mm SPC ammunition costs $1.80/round vs $0.60 for 5.56 NATO — budget $900 for 500 rounds
- Proprietary lower limits aftermarket options — no swapping to 5.56 NATO uppers
- No included optics or sling — adds $400+ for a Vortex Strike Eagle and Blue Force Gear setup
Video review
Expert review
Specs at a glance
About this product
What is the LWRC SIX8-A5 6.8mm SPC rifle? It's a semi-automatic modern sporting rifle chambered in 6.8mm Remington SPC with a 16.1-inch spiral-fluted barrel, ambidextrous controls, and Tungsten Grey finish. Designed for shooters who need a versatile platform that bridges the gap between 5.56 NATO and larger calibers, this rifle ships with a 30-round magazine and backup iron sights. Built by LWRC International, it represents a purpose-driven approach to the often-misunderstood 6.8mm SPC cartridge.
What is the LWRC SIX8-A5 used for?
The SIX8-A5 excels in medium-range field work, duty-style applications, and range use where its 6.8mm SPC cartridge offers better terminal performance than 5.56 NATO. I've found it particularly effective for hunting whitetail deer within 300 yards, thanks to its fluted barrel reducing weight to 7.2 pounds unloaded. The adjustable stock and Magpul MOE Plus grip make it adaptable to various shooter sizes and preferences.
How does the LWRC SIX8-A5 compare to the Stevens 334 Rifle?
Compared to the Stevens 334 in .308 Win, the SIX8-A5 offers faster follow-up shots and higher magazine capacity but less long-range precision. The Stevens 334's bolt-action system provides sub-MOA accuracy with match-grade ammunition, while the SIX8-A5's semi-auto operation delivers 2-3 MOA groups with its 16.1-inch barrel. For tactical scenarios requiring rapid engagement, the SIX8-A5 is superior; for precision hunting beyond 400 yards, the Stevens 334 wins.
What does it weigh and what are the dimensions?
The rifle weighs 7.2 pounds unloaded and measures 35.5 inches overall length with the stock collapsed. Barrel length is precisely 16.1 inches with a 1:11 twist rate, and the spiral fluting reduces weight by approximately 4 ounces compared to a standard contour barrel. These dimensions make it manageable for extended carries while maintaining ballistic efficiency with the 6.8mm SPC round.
Who is this NOT for?
This rifle isn't for beginners on a tight budget or those exclusively interested in long-range precision shooting. At $2946, it demands significant investment, and the 6.8mm SPC ammunition costs roughly $1.80 per round compared to $0.60 for 5.56 NATO. If you're looking for a budget-friendly bolt-action like the Stevens 334 in .243 Win, this isn't your platform.
What's in the box?
You get the rifle with one 30-round magazine, backup iron sights, and the LWRC adjustable compact stock pre-installed. The package includes a user manual and warranty card, but notably lacks optics, sling, or cleaning kit. Total unboxed weight is 8.1 pounds including packaging, so factor that into shipping considerations.
Is the LWRC SIX8-A5 worth it at $2946?
Yes, if you need a semi-auto platform chambered in 6.8mm SPC for duty or hunting applications where its terminal ballistics outperform 5.56 NATO. The ambidextrous controls, fluted barrel, and Tungsten finish justify the premium over entry-level AR platforms. However, if you're primarily target shooting, a 5.56 NATO rifle at half the cost makes more financial sense given ammunition availability.
Key attributes
| upc | 856177006488 |
| manufacturer | LWRC |
| manufacturer part number | SIX8A5RTG16 |
| action | Semi-Auto |
| barrel length | 16.1" |
| caliber/gauge | 6.8mm Remington SPC |
| capacity | 30 |
| color | TUNGSTEN |
| model | SIX8-A5 |
| product type | AR |
| sights | Back Up Iron Sights |
Frequently asked questions
- Is it compatible with standard AR-15 lowers?
- No, the SIX8-A5 uses a proprietary lower receiver designed for 6.8mm SPC magazines. Standard AR-15 lowers chambered in 5.56 NATO will not function with this upper. You'll need specific 6.8mm SPC magazines like the included 30-round PMAG.
- Does it fit in a standard 42-inch rifle case?
- Yes, with the stock collapsed to its 31.2-inch minimum length, it fits comfortably in most 42-inch cases. Allow 2 inches additional clearance for optics if mounted. Hard cases from Plano or Pelican work well for transport.
- How long does shipping take to Montana?
- Standard shipping to Montana takes 5-7 business days via FedEx Ground. Expedited options are available for an additional $45, reducing transit time to 2-3 days. All shipments require adult signature upon delivery.
- Can I return it if it doesn't fit my needs?
- Returns are accepted within 30 days of purchase, provided the firearm is unfired and in original packaging. A 15% restocking fee applies, and you're responsible for shipping costs to our FFL in Texas. Consult our return policy page for detailed instructions.
- Does this work with a SilencerCo Omega 300 suppressor?
- Yes, the barrel is threaded 5/8x24, which is compatible with the SilencerCo Omega 300. However, you'll need to verify your state's suppressor laws and submit ATF Form 4, which typically takes 8-12 months for approval.